Write the difference between:
(a) Actin | Class 11 Biology Chapter Locomotion and Movement, Locomotion and Movement NCERT Solutions
Current NCERT chapter
Academic session 2026-27,
Chapter 17 in the current curriculum.
Welcome to the NCERT Solutions for Class 11 Biology - Chapter Locomotion and Movement. This page offers a step-by-step solution to the specific question from Exercise 1, Question 5:
Write the difference between:
(a) Actin and Myosin
(b) Red and White muscles
(c) Pectoral and Pelvic girdle
.
With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.
Question 5: Write the difference between:
(a) Actin and Myosin
(b) Red and White muscles
(c) Pectoral and Pelvic girdle
Answer:
(a) Actin and Myosin
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Actin
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Myosin
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1
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Actin is a thin contractile protein.
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1
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Myosin is a thick contractile protein.
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2.
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It is present in light bands and is called an isotropic band. (I-band)
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2
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It is present in dark bands and is called an anisotropic band.(A-band)
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(b) Red and White muscles
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Red muscle fibre
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White muscle fibre
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1
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Red muscle fibres are thin and smaller in size.
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1
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White muscle fibres are thick and larger in size.
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2
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They are red in colour as they contain large amounts of myoglobin.
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2
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They are white in colour as they contain small amounts of myoglobin
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3
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They contain numerous mitochondria.
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3
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They contain less number of mitochondria.
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4
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They carry out slow and sustained contractions for a long period.
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4
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They carry out fast work for short duration.
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5
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They provide energy by aerobic respiration.
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5
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They provide energy by anaerobic respiration.
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(c) Pectoral and Pelvic girdle
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Pectoral girdle
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Pelvic girdle
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1
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It is a skeletal support from where the forelimbs of vertebrates are attached.
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1
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It is a skeletal support form where the hind limbs of vertebrates are attached.
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2
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It is composed of two
Bones namely, clavicle or collar bones and scapula or shoulder bone.
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2
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It is composed of three bones, upper ileum, inner pubic, and ischium.
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Other Questions of Chapter Locomotion and Movement
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Study Tips for Answering NCERT Questions:
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
- Read the question carefully and focus on the core concept being asked.
- Reference examples and data from the chapter when answering questions about Locomotion and Movement.
- Review previous year question papers to get an idea of how such questions may be framed in exams.
- Practice answering questions within the time limit to improve your speed and accuracy.
- Discuss your answers with your teachers or peers to get feedback and improve your understanding.
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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 5: Write the difference between:
(a) Actin and Myosin
(b) Red and White muscles
(c) Pectoral and Pel....
Comments
Myosin
Bio should be banned!!
Joints